| article html file updated | 7 February 2020 03:28 CET | Update | https://www.mdpi.com/2071-1050/8/1/83 |
| article html file updated | 6 May 2019 02:31 CEST | Update | - |
| article html file updated | 26 March 2019 18:31 CET | Original file | - |
| article pdf uploaded. | 15 January 2016 10:50 CET | Version of Record | https://www.mdpi.com/2071-1050/8/1/83/pdf |
| article xml uploaded. | 15 January 2016 10:50 CET | Original file | https://www.mdpi.com/2071-1050/8/1/83/xml |
